Home / 15,673.80-21,630.98-10,359.40

Finding the Fourth Proportional to 15,673.80, 21,630.98 and 10,359.40

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Solution

The fourth proportional to 15,673.80, 21,630.98 and 10,359.40 is: 14,296.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,673.80 : 21,630.98 = 10,359.40 : x
  2. Step 2: Convert to fraction form
    15,673.80/21,630.98 = 10,359.40/x
  3. Step 3: Cross multiply
    15,673.80x = 21,630.98 × 10,359.40
  4. Step 4: Simplify right side
    15,673.80x = 224,083,974.21
  5. Step 5: Solve for x
    x = 224,083,974.21/15,673.80
  6. Step 6: Final answer
    x = 14,296.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.